He also told a press briefing on Tuesday that the situation along the contact line remained unchanged in the last day, and "low-intensity fighting" continues without the use of heavy weapons.

In his words, illegal armed groups occasionally violated the ceasefire along the so-called Svitlodarska Du h a, the stretch between the militant-controlled town of Horlivka and the town of Svitlodarsk in Donetsk region. They also shelled areas on the outskirts of Horlivka and near the ruined Donetsk airport, Motuzianyk said.

"Yesterday, the most tense situation was in the village of Opytne, where the enemy used a grenade launcher and where the enemy's snipers were active. All of the strikes were targeted," he added.

Militant forces also breached the ceasefire in the town of Maryinka in Donetsk region, where they were firing small arms on Ukrainian military positions for about an hour, Motuzianyk said.

There has been no shelling in Luhansk region, he said.

At the administrative border with Russian-occupied Crimea, Ukrainian border guards saw a drone and a jet-propelled plane on a reconnaissance mission flying over the peninsula, he added.

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